Burner



M. A. AFESLEH.

BURNER.

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NI. A. FESLER.

BURNER.

APPLICATION FILED IULY 2,1920.

- Paf-,ema May 9,1922.

'3 SHEEIS-SIIEEI 2.

M. A.' FESLER.

BURNER.

APPLICATION msn 1uLY.|92o. 1,415,434. Patented May 9, 1922.

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Vani/01':

gaf-WJ narran y sra'ia y 'POWER COMPANY, A CORPORATION O'FDELAWARE.

BURNER.

Application inea :ruiy 2,

To all whom t may con-cem.'

Be it known that MILTONA. Frisian, .a citizen ofthe United States, residing at Oakland, in the county-of Alameda and State of' California, have invented an Improvement yin Burners, of which theV following description, in connection with the accompanying draw ings, is a specification, like characters on the drawingsrepresenting like parts.-

The invention -to be .hereinafter-described relates to burners employing oil as a-fuel.

Burners of thisA typeeare supplied Withthe fuel oil in liquid formand steam, compressed air or other atomi'zing agent is supplied' to 4 the burner to break up or atomize the oil sub stantially into a gaseous state. For eiiicient combustion of the oil itis sirable that the temperature thereof shall be" raised preparatoryto combustion to a prede-Y termined point suoli, for example,'as 160D FL The aim and purpose Aof the present inven` tion, therefore, is toprovide simpleand elicient means automatically'to maintain the oil at a temperatureL for eicient combustion effect.

The characterof the invention ivillf be best y understoodby reference to the following description of one good form thereofshovvn in' the accompanying' drawings, wherein v Fig. 1 is a transverse section through a1 burner equipped With the thermo-Siphon means; Y f

Fig. 2 is a View partly in section and partly in elevation of a portion of the construction shoW-n in Fig. 1

F ig. 3 is a rear-view ofthe burnersupport, f

the burner being removed therefrom and Fig. 4 is a horizontal sectionwthrough the the support .1 and havingits axis vconvenburner and support. y y I l i Referring to the drawings, the construction shown therein as one good form-of the' invention, comprises al burnersupportl or housing 1, in the present instance, in the form of a substantially cylindrical casing 3 having arms 5 and 7 progecting outward therefrom` provided with holes y9 adaptedto receive bolts jected to heat developed by combustion of the fuel delivered into the furnace by the burner..` The present invention contemplates that this f' heat may beutilized to raise the temperature of the oiltothe desired pointv foreliicient dei. i

sage 15 of the jacket.

Gommunicatingwith the Water passage is'v 1920. serial No. 393,646.v 1

yMILTON A. FESLER, on OAKLAND, oALrronNrA, AssrGNoa To Pii'rrtoLEui/r HEAT AND f lSpecific'ationof Letters Patent. y Patented Mayg,

preliminarily to thedeliv- To this eiidthe supportor housingniay f provided withl ajacket 11 containing an 'oil passage 13 and a' Water passage 15 vconven-i iently ofannular form encircling the cylinder 3the construction beingsuch that said passages Willbe heated jby the heat developed by the burner and conducted to said passagesy through the cylinder 3.

-Theoil `for the burner be taken from and is usually of usual con-v any suitable source of supply, forced to the burner by a pump struction, and therefore, unnecessary to show herein. The oilV may be -conducted tothe eating with said'passage13.'l The oilwill flow from, said passage, and, maybe delivered therefrom through a port `19 connected .to means to be described r*for conductingwthe oilyto the burner.

prises a stand Ypipe I7o passage 13 bya pipe which may be connectedVV toa tapped hole 17 in the housing communi-v .port yaround through. saidA .i

so' i mounted on a support conveniently vin f the.

form of agbase y fioor. The upper end of the stand pipemay 23 `adapted to rest on the be opened to the atmosphere.. --lrojecting` from'the stand pipe is'abran'ch ing to the burner andl connected to a tapped hole 27 communicating AWith tlierwatelr pas- `a [port 29leadingto the interior` .of a casing 31 of general cylindrical form mounted .on

ieiitly extending transversely to theaXis of y the cylinder 3.v This casing,` is provided with a tapped hole 33 adapted to be connected by a.

,branch pipe'35`vvith the'AV stand pipe 214 re;V ata substantial distance v pipe leadf Mounted in the casing `313is a valve 3"(.oooperating with a seat 39 formed-'in a` Wall g `dividing said casing-into chambers 41 and .43. Suitable means may Vbefprovided automati-- io- I cally to operate the valve to regulate the flow `of iwater throughthe Waterpassage 15. This means, -in `the-presentv instance, comprises fa thermostat convenientlyin the form off-an expansible tube 41,5 having headV 47 connected by a stem 49 with the valve 37. The expansible tube 45 may have its end opposite the head 447 connected to a plug` 51 threaded in the wall of the chamberlB. This plug` may have a kerf 53 therein and a screw 55 extending through portions of the plug at opposite sides of the lrerf.and .adapt ed to draw the same toward each other. in order to cause the thread of the plug to l@grip the thread of the casing, and thereby hold the thermostat in different positions of adjustment therein. The adjustment of the thermostat will enable variation of the normal position of the valve 37 with respect to its seat as required. The casino` 31 may have the end containing the chamber 43 closed by a nut plug 57. and the end containing; the chamber l1 may have a h ole therein tapped to receive a plug 59. These plugs may be readily removed to enable convenient access to the valve 37 in the thermostat. The latter may contain alcohol or other suitable liquid having the desired eo-efhcient of expansion.

The construction is such that if the temperature of the water rises, it will cause the thermostat 45 to expand and thereby move the valve 37 away from its seat. This will allow water to flow through the passage 15 and pass the valve 37 with cooling effect on the jacket. On the other hand, if the temperature of the water falls, the thermostat tube will contract and move the valve 37 to its seat, thereby cutting off the supply of cooling water to the jacket. The stand pipe. branch pipes Y tend to circulate water therethrough with the principle of the thermo-Siphon. The water heated in the passage 15 will tend to rise and flow through the branch pipe 35 to the. stand pipe, and the heat thereof may be dissipated through the open end of the stand pipe. The cold water will seek the lower end of the stand pipe and flow through the branch pipe 25 up into the passage 15. rThe stand pipe may be supplied with water from time to time as required, in order to maintain the thermo-siphonie operation thereof.

Tn starting the burner, a Bunsen burner 61 of usual construction may be applied to the housing adjacent the water passage 15. and may be permanently connected to the housing if desired. The heat from the Bunsen burner will hea-t the oil and water and initiate the thermo-siphonic flow of water through the passage. After they have been heated sufficiently, the Bunsen burner may be extinguished.

The heat developed by the burner 'will act on the water passage 15 and oil passage and tend to raise the temperature thereof, but since the water passage is nearer the fur nace than the oil passage, it will experience 4 greater heat than the oil passage. The temperature of the oil will rise up to a predeand the water passages willV termined point, such, for example, as 160 F., and the thermostat may be so adjusted that when the oil attains va temperature above this point.A it will automatically open the valve 37 and allow the cooling; water to flow through the passage 15. Since the latter is closely adjacent to the oil passage, the oil will be cooled thereby. This cooling; effeet will continue until the temperature thereof lowers to the predetermined point. and thereupon., the thermostat will return the valve to its seat and eut off the fiowv of cooling 'water through the passage 15. Thus,y by the means described. the oil flowing through the passa ge 13 will be autom atieally maintained .at the desired temperature for efficient combustion effect. V

Any suitable form of burner may be provided in connection with the tennrierature controlling device for the oil described. ln the present instance of the invention. a burner is provided of substantially the same construction as disclosed in my copendinog application Serial No. 219.953. filed March 2, 1918. f

This burner comprises a casingy or nozzle 63 formed to fit Within the housing; cylin-A der 3, and preferably spaced somewhat therefrom. Mounted in said casing' is an oil conducting tube 65 substantially smaller than the casing 63 so as to leave an annular passage 67 between them for delivery of compressed air or other atomizing agent, as more fully hereinafter described.

Mounted on ball bearings carried by the tube 65 is a shell 69 provided with a flaring nozzle 71. A turbine 73 is mounted on the shell 69 in the path of' the fluid forced through the annular passage 67 and rotated thereby. The construction is such that the oil delivered from the tube 65 to the nozzle 71 will be whirled outward by the latter under the influence of centrifugal force into the path of the annular stream of fluid issuingfrom the nozzle 63. Thus the oil will be atomized or broken up by the fluid into substantially a gaseous state for efficient combustion effect.

Suitable means may be provided to conduct oil from the passage '13 referred to, injll' the housing' jacket. to the tube 65. In the present instance, this means comprises an elbow tube 75 having one end connected to the rear end of the easing 63 and communieating with the tube 6.5. This elbow tube I has a portion 77 projecting; substantially parallel to the axis of the burner, andA threaded in a lateral extension 79 projecting; from the casing' 63.

` `Mounted in the tube portion 77 and tele# 125- scopine therewith is a tube 81 having an end threaded inte the tapped hole 19 referred to, on the housing. A stuflinp; boi; 33 maybe provided between the tube portion 77 and tube 31. to prevent leakage therebetween. `l

The end of the tube 81 may be closed, and a port 87 may be provided in the side of said tube for communication with a port 89in the elbow tube leading to the tube 65.k

The construction'is such that the burner may be moved relatively to the housing'to and from active firing position. In the course of this movement, the tube portion 77 will slide along the tube 81. VVhenthe oil on passages ot vthe burner and clogging` the saine.' Residual' oil lin the burner passV sages is desirably withdrawn therefrom on movement of the burner from firingiposi-l tion by the pump-like or suction effect of the tube 81in the tube portion 77.

The burner is guided partly in its movements to and from iring `position by the tube 81. To further contributeto the guidance and support of the burner, a? rodl 91 may have an end connected to the support and project rearward.therefromrsubstaii-` tiallylparallel to the tube 81. Thisl rodmay project through a lateral extension95 onjthe burner, and the rearward movement of the latter may be limited by a Cotter pin 95 in said rod.

Compressed air or other suitable atomizling agent may be conducted to the burner from a suitable source' of-supply through a neck 97 on the support, and adapted tocommunicate with a neck 99 projecting laterally from the burner casing 68 and communicat: ing vwith the annular passage 65 therein. A butterfly valve 101 may bemounted in the neck 97 on a rock shaft 103 having an arm 105 fast thereon connected by? a link -107 with a screw pin 109 on the neck 99.' -The construction is such that when the burner is moved to ringposition, the valve will be automatically rocked by the connections described to admit atomizing fluid into the burner, and when the burner is moved from firing position, the valve will be rocked by the connections described to cut otf the supply of atomizing i'luid from the burner.

In operation, the oil coming from its source of supply will pass through the jacket passage 13 and be heated thereby, as described, to the temperature desired. It will flow thence through the tube 81, and the elbow tube 75 to the tube 65 within the burner, and will flow therefromy through the nozzle 71 and'be deliveredthereby. The compressed air or other atomizing fluid will flow from its source of supply throughthel necks 97 and 99 into the annular passage 67, and upon flow through the latter will en# gage the turbine 73 andimpar't rotation thereof andl to the 'nozzle 71. c Thexcom# -pressed air or fluid `will flow thence in A`"an annular stream through the nozzle 63 and be delivered therefrom with atomizing'effect on 'oilfwhirling|` outwardly from the noz-' zle71.v t

It will ybe understood that the invention is not limited-to the speciic` embodiment shown, and'that various deviations may be made therefrom without-departing fromzthe Spirit and Scope 0f the appended claims wWhat is claimed is i` 1. The combination of a burner having a.

water jacket adaptedto be heatediby'heat developed by `the burner', thermo-siphoiiic means for supplying water to saidjacket, means to conductoil adjacent tosaid water jacket preliminarily to delivery of the 'oilf y tothe burner, that the oil vmay besubjectedf to heating or cooling influence from `the water in said jacket, aval've for vthe vwater 'sup'- oil, a receptacle disposedto be' heated 'by ply means, and 'a thermostat 'responsive 'to the temperature of the water automatically' the heat developed by Vthe burnerand 'pr'o'f vided with! oil and water containing`con-- `duits,.means for delivering-oilffto the receptacle toLheat the oilpreliminary to combus# tion thereof, and ,.-ftemperature controlled through its conduit lto therebycontrol the' temperature to which the oil is heateollf'" 3. :The combination of a burner, aburnerv housing disposed to be subjected' to heatV de`` vel'opedby the burner, means for conducting Voil through'the housing and subjecting'it termined temperature for #delivery tothe` burner.l j 1 '4. The combination of a burner `orfuel oil, means to supplyoil thereto, meansheati -1'00` l means for regulating'ythe'fflow of Vwater I' ed by the heat developed by. the burner for v automatically heating the oil preliminarily to combustion, means for automatically controlling' the temperature to `which the oil is heated, and an auxiliary heater for heat'- ing the fuel oil prior to the development of heat by the burner. l

5. The combination of a burner housing adapted to be subjected to heat developed by the burner and having adjacent oil and water jacket passages, means to supply water to said water passage that the water may be heated by said heat and transmit heat to the oil in the adjacent .oil passage in preparation for combustion. and thermostatic means for regulating the tloiv of Water in said Water passage, thereby automatically to maintain the oil in the oil passage at a predetermined temperature.

6. The combination of a burner, a receptacle having a ivater passage adapted to be subjected to heat developed by the burner, means to supply oil to the burner including a passage adjacent to the water passage, that the temperature of the oil in the oil passage may be controlled by the temperature of the water in the Water passage, and means automatically to supply cooling ivater to the Water passage as required to maintain the oil in the oil passage substantially at a predetermined temperature preliniinarily to combustion of the oil.

7. The combination of a burner for fuel oil, oil and water containing chambers surrounding the burner and disposed to be subjected to heat developed by the burner, means to circulate Water through the Water chamber to regulate the temperature of the oil, and temperature responsive means for regulating the flow of Water through the Water chamber.

8. The combination of a burner for fuel oil, means to supply oil thereto, and thermosiphonic means for supplying Water adjacent to the oil supply means, thereby automatically to control the temperature of the oil preliminarily to combustion thereof.

9. The combination of a burner housing having oil and Water passages adapted to be subjected to heat developed by the burner, a burner mounted in said housing and receiving oil from said oil passage, thermo-siphonic means for supplying cooling water to said water passage to regulate the tem-` perature of the oil in the oil passage, and a thermostat means for controlling the supply of Water from said thermo-siphonic means to said Water passage.

l0. The combination of a burner housing,-

a burner mounted thereon movable relatively thereto to and from firing position, said housing having oil and Water passages therein in adjacent relation that the temperature of the oil in the oil passage may be regulated by the temperature of the vvater in the Water passage. means to conduct oil from the oil passage to the burner when the latter is in firing position, and temperature responsive means automatically to supply Water to said Water passage.

1l. The combination of a burner housing, a burner mounted therein, said housing ha ing Water and oil conducting passages adapted to be subjected to heat developed by the burner, `means to conduct oil from the housing to the burner including telescoping tubes, and a thermostat'controlled means for regulating the flow of Water through the Water passage in the housing.

12. The combination of a burner housinghai/'ing oil and Water conducting passages therein adapted to be subjected to heat dcveloped by the burner, a stand pipe, a branch pipe leading from said stand pipe to the Water passage, a branch pipe leading from said Water passage to said stand pipe, a` valve for controlling the iioiv of water through said Water passage, and a thermostat responsive to temperature changes in the "Water for automatically opening and closing said valve to regulate the cooling effeet of the Water in the Water passage on the oil in the oil passage.

13. The combination of a burner housing having adjacent oil and Water conducting passages therein, and having the Water pas sage disposed between the oil passage and the heat developed by the burner and in position to be heated by the burner, means to supply Water to said Water passage, a valve for regulating the flow of Water through said Water passage, and a thermostat for operating said valve having provision for varying the normal position of said valve.

lil. The combination of a housing having oil andivater conducting passages therein, a casing communicating with said Water passage, a valve and its seat mounted in said casing, and a thermostat exposed to the Water and operable to control said valve in response to variations in the temperature of the Water in said passage.

In testimony whereof, I have signed my name to this specification.

MILTON A. FESLER. 

